Sheet-music turner



sept. 16. 1924. 1,508,534

J. P. ROSS SHEET MUSIC TURNER llllllllll l, SS NvENroR BY i .A oRNEY WITNESS; l n

. sept. 16. 1924. 1508 534 J. P. Ross SHEET MUS I C TURNER W l TN ESS ATTORNET Sept. 16, 1924. J. P. Ross SHEET MUSIC TURNER Filed July 10 1922 4 Sheets-Sheet 3 INVENTUR ATTOFWEY WITNESS:

Sept. 16 1924.

1,508,534 J. P. ROSS SHEET MUSIC TURNER Filed July 10 1.922 4 Sheets-Sheet 4 iii- Q Patented Sept. 16, 1924.'

. UNITED STATES JAMESPERQIVASL ROSS, OF GIRVIN, SASKATCHEWAN; CANADA;

SHEET-MUSIC TURNER;

Application filed July4 10,1922. Serial No. 573,887,

To all whom t may concern:

Be it known` that I, JAMES P. Ross, a subject. of the King of Great Britain, residing at' Girvin, in the Province of Saskatchewan and Dominio-nl of` Canada, have invented new and useful Improvements in Sheet- Music Turners, of which the following is a specification.

This' invention relates to a musicl leaf turner,the`y general object of the invention being to provide an attachment forl a piano or. thel like, for turning the leaves of'k sheet music, the device being opera-ted by the knee or hand of the player, tol turn the sheets one by one Without the necessity of raising thehands fromthev key-board. A

Another object of the invention is. to provide meansv whereby aA sheet can be easily turnedback, when it is desiredto res peat the music, without interfering with the operation of: the device.

A stillv further object of 'the invention is to. provide adjustable clamps on the arms of the device for engaging the leaves.

This invention also consists in certain other features of constructionF and! in the combinationand arrangement of the several parts, to be hereinafter fully describech i1- lustratedV in the accompanyingl drawings and specifically pointed out in the appendf ed claims.

In describingy my invention. in` detail., reference will be had to the accompanying drawings wherein like ycharac-ters denote like or corresponding parts throughout the several views, and. in which Figure 1 is a front view-showing a part of thep'iano with my invention in use. l

Figure 2 is a top plan view ofthe parts shown in Figure 1.

Figure 3- is a longitudinal sectional view through the device.

Figure 4. is a front elevation with parts in section and parts broken away,y showing the armsturned tothe right.y

Figure `5 is alview similar. to Fi 'ure 4 but showing one arm turned to the eft.`

Figure 6 is an end view.

Figure 7 is a section on line 7 7 of Figure 4.

Figure Figure 4.

Figure Figure 4.

Figure clamps.

8 is a section on line 8-8 of 9 is a section on line 9 9 of 10 is an edge view of one of the In these 'views l indicates a casing whichy is adjustably secured to the. end' pieces 2,

these end pieces. being provided' with hookshaped upper ends 3.' for engaging the front board' AL ofthe piano. These'.` parts are so formed that they will". be in a. position to hold the. sheet'niusio. where it` can-,bereadily seen by a person playing the piano..- The end pieces. carry. thev springclamping fingers. 4 for. holdingl the Sheetmusic in place. and the casino is. providedf with. ay

depende am 5- wiui. is; aefachably Se. curedto t e lower edge offtliecasingk and is used when the` device. 1ste be. used for. turning the leaf :of abook. Thisarmisadapted to hold the center. ofi the book. in., raised. poy gaged byl a, rack bar. 1-1, slidably mounted inthe casing... and', these bars are adaptedto be. moved by an L-shapedfmember 12 which is slidabl'y mounted inthe casing andf has its upper. `end` projecting through a.. slot. in the casing, this uppen end4 acting as a finger hold' for moving the parts to; their normal position. The front. part, of this.- member is formed. with rack teeth, as shownatl., and. these teeth. are engaged-y by a sprin pressed dog 1.4 whichisfpivotally mounted to a` rocking lever 15the upperendof which is` guided; by. the plate. 16.- formingy part of the casing. A spring 17 "normally holds the rocking lever against af stop p inf, 18 in the casing and' acable 19 has one endconnected withthe said lever. and' its other end. isr conf nected with. onecrank. of, ai crank rod?. 20 mounted. below the. key-board of' the. piano and whichA has itsV othercrank connected by a link 21 with an operatingI lever 22 which is'pivoted tov a bracket 23t on the under side of the key-board support of the piano. Thus this lever 22 can be operated by the knee of the player or by his hand. The upper rack bars 11 are provided with notches 24 for engaging pins 25 on the upright arm of the member 12. The notch in the upper bar is smaller than that in the second bar so that the pin 25 will not engage the front wall of the notch 24 of the lil V11 downwardly upon the pins.

- bar has been moved forwardly soV as to raise ythe rack bars and thus free the notches 24:

from the1pin's25. Y v

From theforegoing it will be seen that When the' lever 22 is moved to the left by the knee or hand of the operator, the cable, which passes over suitable'guiding pulleys 28, will move the rocking lever 15 forwardly against the action of its spring, thus causing the dog 14 to engage the rack teeth13 to move the member 12 towards the right. This movement of member 12 will move the upper rack bar 1l due to the fact of the pin 25 engaging the notch 24k of said rack bar and .the teeth" engaging the pinions 6 will rotate the pinions and thusswing the arml 8 attached thereto over to the left and so turn the page to which the arm is connected by its holder. Just before the completion ofthe movement of the parts the tooth 27 on the top bar 11 will engage the pin 26 so that the -bar will be raised and thus move the notched part vaway from the pin 25. During this operation `the second pin 25 will have moved forwardlyinthe notch 24k ofthe second bar`11 to a point adjacent the inner wall of the notch so that when the lever 22.is ymoved again to cause the member 12 to continue itsforwardmovement, said second'pin 25 will 'engagethe front wall of the notch of the second bar 11 and move this vbar forwardly, thus rotating thesecond pinion` and swinging the second arm 8 towards the leftjsoasto turn the secondsheet. The. tooth 27 ofv this second bar 11 will'engage the pin 26 so that this second bar 11 is freed from the pin 25 in order to permit the member 12 to again be moved forwardly without moving the two upper bars 11.` lVhen the lever l22 is moved for the third time the upright part of me1nV ber 12 will strike the third bar 11 to cause it to move forwardly to rotatethe pinion and thusl swing the third arm 8 to the left to turn the third page. Thus the pages of the sheet music are turned one at a time and when desired by simply pressing the lever 22. After turning the page and it is desired to repeat it is simply necessary to swing the arm'8 back'to its original position which will cause the pinion to return the rack bar 11 to its original position and as this bar moves forwardly it will drop down so that yits notch will engage the pin 25 and thus Y the member 12 will be' returned to its position. Thus' the'musie on a page can be repeated without interfering with the operation of the device. i' When all the 'leaves have been turned the arms Will swing back in unison' but in this case it will be necessary to return the member 12 back to its originalV position by'means of its projecting upper end. As the lever 22 is operated'the member 12 is moved forwardly a certain dis- `tance and then comes. to rest and the dog 14 is returned to its startingpoint. VVhen the lever 22 is released by`means ofthe spring 17 pulling the rocking lever llback against the pin 18, the dog Vis in a position to engage a new part of the member 12jto move it forward another step to operate the next rack bar. It will be understood that as many sheet holding arms'can be used'as desired.

` Itis thought from the foregoing descrip-y tion that the advantages and novel features of my invention will be readily apparent.

l desire -it to be understood thatrI may make changes in the construction and in the combination and arrangement of the several parts, provided that such changes fall within the-scope of the appended claim. vWhat l claim is j A leaf turner of the class described comprising a casing, a shaft therein, pinions mounted on the shaft, an arm connected the pins from the notches after a certain v amount of movement Vof the parts, such means consisting of projections on the rack bars and stationary stops in the casing for engaging the projections for raising the rack bars, i

In testimony whereof I aiiiX my signature.

` JAMES PERCIVAL ROSS. 

